CHE LS1 Shaft-Mount Trunnion Kit (CHE-3430-SM) | For Cathedral-Port 4.8L 5.3L 5.7L 6.0L LS Engines — LS2 LS6 LQ4 LQ9 L33 LC9 Models

Step up your LS valvetrain game with the CHE Cathedral-Port Shaft-Mount Trunnion Kit (CHE‑3430‑SM)—an elite upgrade engineered for 1997–2013 cathedral-port LS engines. Whether you're operating a truck or car with 4.8, 5.3, 5.7, or 6.0 L displacement using LS1, LS2, LS6, LQ4, LQ9, L33, or LC9 heads, this kit delivers race-level valvetrain stability. The system includes 8 hardened shafts, 32 full-floating bronze bushings, and 33 precision snap rings, and is designed to eliminate deflection by firmly locking down rocker movement—resulting in rock-solid valve actuation accuracy and harmonics isolation per cylinder. Built from premium materials and precision-machined, it's ready for aggressive, high-load environments whether you're strapped with boost, hitting the track, or pushing marine RPM levels. Install with confidence—rocker arms not included.

• Complete Shaft-Mount Kit – Includes 8 hardened steel shafts, 32 floating bronze bushings, and 33 snap rings to elevate rocker stability and valvetrain precision.
• Cathedral-Port LS Compatibility – Perfectly fits 4.8–6.0 L LS heads: LS1, LS2, LS6, LQ4, LQ9, L33, and LC9 (1997–2013). Not for rectangle-port engines.
• Minimizes Rocker Deflection – Locks down rocker geometry to significantly reduce harmonics and maintain valve timing, cylinder-by-cylinder.
• Precision Bronze Bushing Support – Full-floating bronze bushings resist wear and allow smooth rotation under high loads and RPM.
• Engineered for Abuse – Ideal for high-power, boosted, marine, or sheet-metal-heavy performance builds—built to withstand serious valvetrain punishment.